for unpolarized target and without
recoil polarization
The following notation of the coincidence cross section
will be used in our calculations. Further details can be found in D. Drechsel
and L. Tiator, J. Phys. G 18 (1992) 449-497. (scanned
version) (click
here for a larger image)
On this page only the individual 2-fold
cross sections dsT, dsL, dsLT, dsTT and dsLT'
will be calculated. For a calculation of the complete 5-fold differential
cross section see our
alternative page.
Note: The longitudinal
cross sections (dsL, dsLT and dsLT') differ from those in Drechsel and
Tiator, J. Phys. G18 (1992) 449. Here we do not use the longitudinal polarization
epsilon_L!!Channel: (pi0,p) (pi0,n) (pi+,n) (pi-,p)
Model parameters: Born Rho Omega P33(1232) P11(1440)
D13(1520) S11(1535) S31(1620) S11(1650) F15(1680) D33(1700)
Change of S-wave low-energy
corrections and type of pi-N coupling (click
here for details)
E0+
S0+
PS-PV mixing range parameter Lambda
Change
values of resonance couplings (relative to standard values):
P33(1232)
S31(1620)
D33(1700)
M1+
E1+
S1+
E0+
S0+
M2-
E2-
S2-
P11(1440)
D13(1520)
S11(1535)
S11(1650)
F15(1680)
M1-
S1-
M2-
E2-
S2-
E0+
S0+
E0+
S0+
M3-
E3-
S3-
Choose kinematical variables
choose an independent (running)
variable: Q² W Q
choose values for Q², W, Q,
step
size and maximum value:
